// Copyright 2016 The LUCI Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package dm

import "fmt"

// MinimumActivationTokenLength is the minimum number of bytes in an appropriate
// ExecutionToken.
const MinimumActivationTokenLength = 32

// Normalize returns an error iff the ActivateExecutionReq has bad form (nils,
// insufficient activation token length, etc.
func (a *ActivateExecutionReq) Normalize() error {
	if err := a.Auth.Normalize(); err != nil {
		return err
	}
	if len(a.ExecutionToken) < MinimumActivationTokenLength {
		return fmt.Errorf("insufficiently long ExecutionToken: %d",
			len(a.ExecutionToken))
	}
	return nil
}
